[TASK] Clean up phpDoc comments in typo3/sysext/

Clean up phpDoc comments for the following classes:

* typo3/sysext/cms/tslib/hooks/class.tx_cms_fehooks.php
* typo3/sysext/cms/tslib/hooks/class.tx_cms_mediaitems.php
* typo3/sysext/cms/tslib/hooks/class.tx_cms_treelistcacheupdate.php

Clean up provides:

* Provide correct parameter names in phpDoc
* Provide correct data types in phpDoc
* CGLify phpDoc (remove tabs)

Change-Id: Iaba214e833f3d256df2f8b4691c03f8ca85c36fd
Resolves: #38098
Releases: 6.0
Reviewed-on: http://review.typo3.org/12104
Reviewed-by: Oliver Klee
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel